body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}

.container {
    display: flex;
    height: 100vh;
}

.sidebar {
    width: 300px;
    border-right: 1px solid #e0e0e0;
    padding: 20px;
    background: #f8f9fa;
}

.content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.list-item {
    padding: 8px 12px;
    cursor: pointer;
    border-radius: 4px;
    margin-bottom: 4px;
}

.list-item:hover {
    background-color: #e9ecef;
}

.list-item.selected {
    background-color: #007bff;
    color: white;
}

/* ... 其他样式 */

/* 隐藏二级和三级菜单 */
.pods-list, .containers-list {
    display: none;
}

/* 当一级菜单被悬停时显示二级菜单 */
#namespaces ul li:hover > .pods-list {
    display: block;
}

/* 当二级菜单被悬停时显示三级菜单 */
.pods-list li:hover > .containers-list {
    display: block;
}